56 LATITUDE AND LONGITUDE. 
The result of our repeated observations on 
land, are as follows :— 
Latitude of Botafogo . : - 21° 56’ S" South. 
Medium Longitude from various 
observations. : : 43° 7’ 32” West. 
Every longitude which is given in the course 
of this voyage is reckoned by the distance 
from Greenwich, going from West to Kast. 
The variation of the needle amounted to 3° 
East, its inclination to 9° 28. As the longitude 
of Cape Frio has been variously laid down, I 
took much pains to ascertain it exactly. By a 
very good chronometer, I found the difference 
between Cape Frio and Botafogo 1° 6’ 20”; so 
that the true longitude of Cape Frio from 
Greenwich must be 42° 1’ 12.” 
